CN207178074U - A kind of oil pump oil circuit and diesel car - Google Patents
A kind of oil pump oil circuit and diesel car Download PDFInfo
- Publication number
- CN207178074U CN207178074U CN201720795435.9U CN201720795435U CN207178074U CN 207178074 U CN207178074 U CN 207178074U CN 201720795435 U CN201720795435 U CN 201720795435U CN 207178074 U CN207178074 U CN 207178074U
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- pipeline
- valve
- oil circuit
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- 239000003921 oil Substances 0.000 claims abstract description 304
- 238000012546 transfer Methods 0.000 claims abstract description 74
- 239000002828 fuel tank Substances 0.000 claims abstract description 28
- 230000001050 lubricating effect Effects 0.000 claims abstract description 8
- 239000010687 lubricating oil Substances 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000295 fuel oil Substances 0.000 description 12
- 238000005461 lubrication Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
Diesel engine of vehicle manufacturing field is the utility model is related to, in particular to a kind of oil pump oil circuit and diesel car.The utility model discloses a kind of oil pump oil circuit, for light diesel engine, including fuel tank, oil transfer pump and the common rail pipeline being sequentially communicated；Common rail pipeline is communicated with oil return pipe, one end connection fuel tank of the oil return pipe away from common rail pipeline；Oil transfer pump includes lubricating pipe and the plunger pump connected with oil transfer pump, and lubricating pipe is used to lubricate plunger pump；Oil transfer pump also includes pump inner chamber, and pump inner chamber is used to collect the oil leak in plunger pump and the lubricating oil of plunger pump, and pump inner chamber connects with oil return pipe.The oil pump oil circuit is able to ensure that the stability and accuracy of oil mass, mitigates oil transportation pump load, and improve the supply capability and reliability of the oil transfer pump slow-speed of revolution.
Description
Technical field
Diesel engine of vehicle manufacturing field is the utility model is related to, it is motor-driven in particular to a kind of oil pump oil circuit and diesel oil
Car.
Background technology
In the oil pump oil circuit of existing diesel, be present dew oil when valve is closed in inlet metering valve, revealed for discharge
Fuel oil must increase by zero oil mass choke valve before the valve of the inlet metering valve of oil pump oil circuit.Such set-up mode so that increase
Add the oil pump oil circuit after zero oil mass choke valve is relative to become complicated.Secondly as the aperture of zero oil mass choke valve is smaller, resistance be present
Oil pump oil circuit risk is filled in, and zero oil mass choke valve is also not susceptible to process.
In addition, the low speed oil supply performance of existing oil pump oil circuit is poor.
Utility model content
First purpose of the present utility model is to provide a kind of oil pump oil circuit, for light diesel engine, the oil pump oil circuit
Oil pump oil circuit fuel feeding stability can be effectively improved, while the structure of oil pump oil circuit can be simplified, reduces the use of oil pump oil circuit
Cost and manufacture difficulty of processing.
Second purpose of the present utility model be to provide a kind of diesel car, and the diesel car is by using above-mentioned
Oil pump oil circuit, it is possible to increase the stability of operation, reduce the manufacturing cost of oil piping system, and the operation for improving oil pump oil circuit is steady
It is qualitative.
What embodiment of the present utility model was realized in：
A kind of oil pump oil circuit, for light diesel engine, including fuel tank, oil transfer pump and the common rail pipeline being sequentially communicated；
Common rail pipeline is communicated with oil return pipe, one end connection fuel tank of the oil return pipe away from common rail pipeline；
Oil transfer pump includes lubricating pipe and the plunger pump connected with oil transfer pump, and lubricating pipe is used to lubricate plunger pump；
Oil transfer pump also includes pump inner chamber, and pump inner chamber is used to collect the oil leak in plunger pump and the lubricating oil of plunger pump, and
And pump inner chamber connects with oil return pipe.
Oil in fuel tank is after entering in oil transfer pump, by the pressurization of oil transfer pump so that oil transfer pump is by oil transfer pump
Middle discharge.The oil discharged from oil transfer pump is two-way, wherein plunger pump is flowed to after oil transfer pump pressurizes all the way, after plunger pump
Common rail pipe is supplied to spray for fuel oil；In addition all the way after oil transfer pump pressurizes, carried out into plunger pump, and to the inside of plunger pump
Lubrication.The fuel oil of plunger pump leakage collects with high-pressure oil pump lubrication fuel oil in pump inner chamber, is flowed back to through high-pressure oil pump return line
Fuel tank.It can be come back in addition, entering in common rail pipeline the oil not being ejected after oil return pipe is entered in fuel tank.By
This, the oil pump oil channel structures are simple, simplify the structure of oil circuit, reduce the cost used, thus, it is possible to improve the steady of operation
It is qualitative, and improve the precision and fuel feeding stability of fuel feeding.
In a kind of embodiment of the present utility model：
Metering pipeline is additionally provided between plunger pump and oil transfer pump, metering pipeline is provided with inlet metering valve, metering pipeline
One end connected with the oil-out of oil transfer pump, the other end of metering pipeline connects with the oil inlet of plunger pump.
In a kind of embodiment of the present utility model：
Inlet metering valve includes ball-valve structure inlet metering valve, and ball-valve structure inlet metering valve is arranged on metering pipeline.
In a kind of embodiment of the present utility model：
Oil pump oil circuit also includes current limliting pipeline, and current limliting pipeline is provided with flow-limiting valve, one end of current limliting pipeline and metering pipeline
Connection, the other end of current limliting pipeline connect with the oil inlet of oil transfer pump.
In a kind of embodiment of the present utility model：
Flow-limiting valve includes ball-valve structure flow-limiting valve, and ball-valve structure flow-limiting valve is arranged on current limliting pipeline.
In a kind of embodiment of the present utility model：
Oil transfer pump includes rotor, eccentric hoop, slide plate, the pump housing and sliding blade spring；
Eccentric hoop is covered in the pump housing；
Rotor is arranged in the rotating shaft of plunger pump, and rotating shaft can rotor driven rotate, be provided with multiple chutes on rotor,
Circumferencial direction of multiple chutes along rotor is arranged at intervals；
Slide plate is correspondingly arranged in multiple chutes, sliding blade spring is arranged in chute and both ends are respectively held against the bottom of chute
Portion and slide plate, the one end of slide plate away from spring under the elastic acting force of sliding blade spring with the inwall of eccentric hoop against.
In a kind of embodiment of the present utility model：
Inlet valve is provided with the connectivity part of plunger pump and oil transfer pump；
Delivery valve is provided with the connectivity part of plunger pump and common rail pipeline.
In a kind of embodiment of the present utility model：
Oil pump oil circuit also includes overflow passage, and overflow passage is provided with overflow valve, one end of overflow passage and oil transfer pump
Oil-out connects, and the other end of overflow passage connects with oil return pipe.
In a kind of embodiment of the present utility model：
Fuel filter is additionally provided between fuel tank and oil transfer pump.
A kind of diesel car, diesel car include fuel injector and above-mentioned oil pump oil circuit；
The common rail pipeline of oil pump oil circuit is connected with fuel injector.
The technical solution of the utility model at least has the advantages that：
Oil pump oil circuit provided by the utility model, for light diesel engine, the oil pump oil circuit can effectively improve oil pump oil
The oil supply performance on road, while the structure of oil pump oil circuit can be simplified, reduce the use cost and manufacture difficult processing of oil pump oil circuit
Degree.
Diesel car provided by the utility model, the diesel car is by using above-mentioned oil pump oil circuit, Neng Gouti
The stability of height operation, reduces the manufacturing cost of oil piping system, and improve the operation stability of oil pump oil circuit.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of oil pump oil circuit in the utility model embodiment；
Fig. 2 is the setting schematic diagram of oil return pipe in the utility model embodiment；
Fig. 3 is the setting schematic diagram of inlet metering valve in the utility model embodiment；
Fig. 4 is the structural representation of rotor in the utility model embodiment；
Fig. 5 is the scheme of installation of rotor in the utility model embodiment.
Icon：200- oil pump oil circuits；210- fuel tanks；220- oil transfer pumps；230- common rail pipelines；240- oil return pipes；250- posts
Fill in pump；260- metering pipelines；270- current limliting pipelines；251- pumps inner chamber；261- inlet metering valves；271- flow-limiting valves；221- rotors；
222- eccentric hoops；223- slide plates；224- chutes；225- sliding blade springs；The 226- pump housings.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the utility model embodiment, it is necessary to explanation, term " interior ", " under " etc. the orientation of instruction or
Position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when the side usually put
Position or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction or the device for implying meaning
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to of the present utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the utility model embodiment, it is also necessary to explanation, unless otherwise clearly defined and limited,
Term " setting ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect, can be joined directly together, can also be indirectly connected by intermediary, can be two elements
Internal connection.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the utility model
In concrete meaning.
Embodiment
Fig. 1 is refer to, Fig. 1 shows the concrete structure of the oil pump oil circuit 200 provided in embodiment.Can from Fig. 1
Go out fuel tank 210, oil transfer pump 220 and common rail pipeline 230 that the oil pump oil circuit 200 includes being sequentially communicated.And fuel oil is in the oil
Flow direction in pump oil road 200 is as shown by arrows in FIG..
It should be noted that the oil pump oil circuit 200 is used for light diesel engine, it is ensured that the fuel feeding stability of oil transfer pump 220 with
And accuracy.Secondly, mitigate the load of oil transfer pump 220, and improve the supply capability and reliability of the slow-speed of revolution of oil transfer pump 220.
Specifically, refer to Fig. 2, fuel tank 210, oil transfer pump 220 and common rail pipeline 230 are sequentially communicated, and common rail pipe
Road 230 is communicated with oil return pipe 240, one end connection fuel tank 210 of the oil return pipe 240 away from common rail pipeline 230.Thus fuel tank 210,
In the case that oil transfer pump 220, common rail pipeline 230 are sequentially communicated, common rail pipeline 230 and fuel tank are connected by oil return pipe 240
210, form the circulating oil path of fuel tank 210, oil transfer pump 220, common rail pipeline 230 and oil return pipe 240.
Fig. 3 is refer to, oil transfer pump 220 includes lubricating pipe and the plunger pump 250 connected with oil transfer pump 220, lubrication management
Road is used to lubricate plunger pump 250.Oil transfer pump 220 also includes pump inner chamber 251, and pump inner chamber 251 is used to collect the leakage in plunger pump 250
The lubricating oil of oil and plunger pump 250, and pump inner chamber 251 connects with oil return pipe 240.Fluid can be imported by lubricating pipe
Plunger pump 250 is lubricated accordingly, secondly, the fluid after lubrication can be entered in pump inner chamber 251, while plunger pump 250
In oil leak can also return in pump inner chamber 251, by the way that pump inner chamber 251 is connected with oil return pipe 240 so that in plunger pump 250
The lubricating oil of oil leak and plunger pump 250 can be returned in fuel tank 210 by oil return pipe 240 again so that and the process can circulate,
The waste of resource is avoided, ensure that the stability of the oil pump oil circuit 200.
It should be noted that in the oil pump oil circuit 200, fuel tank 210 is used for oil in reserve, and possesses and oil is cleared up
Ability, with ensure oil quality.Oil transfer pump 220 is used to provide certain pressure for the subsequent structural in the oil pump oil circuit 200
Oil.Common rail pipeline 230 is connected with injector, for spraying fuel oil.Oil return pipe 240 is managed for collecting oil leak among oil circuit etc. not
The oil utilized is used and repeated, and after collection, oil is delivered in fuel tank 210.
To sum up, in the present embodiment, the oil in fuel tank 210 is after entering in oil transfer pump 220, by oil transfer pump 220
Pressurization so that oil transfer pump 220 is discharged in by oil transfer pump 220.The oil discharged from oil transfer pump 220 is two-way, wherein one
Road flows to plunger pump 250 after the pressurization of oil transfer pump 220, and common rail pipe is supplied after plunger pump 250 and is sprayed for fuel oil；In addition all the way
After the pressurization of oil transfer pump 220, it is lubricated into plunger pump 250, and to the inside of plunger pump 250.The combustion that plunger pump 250 leaks
Oil collects with high-pressure oil pump lubrication fuel oil in pump inner chamber 251, and fuel tank 210 is flowed back to through the road of high-pressure oil pump oil return pipe 240.In addition,
The oil not being ejected is entered in common rail pipeline 230 to come back in fuel tank 210 after oil return pipe 240 is entered.By
This, the oil pump oil circuit 200 is simple in construction, simplifies the structure of oil circuit, the cost used is reduced, thus, it is possible to improve operation
Stability, and improve the precision and fuel feeding stability of fuel feeding.
In the present embodiment, Fig. 4 is refer to, metering pipeline 260 is additionally provided between plunger pump 250 and oil transfer pump 220, is counted
Buret road 260 is provided with inlet metering valve 261, and one end of metering pipeline 260 connects with the oil-out of oil transfer pump 220, gauge line
The other end on road 260 connects with the oil inlet of plunger pump 250.So that oil is entering oil transportation after oil transfer pump 220
Metering pipeline 260 can be first passed around before pump 220, due to being provided with inlet metering valve 261 on metering pipeline 260, by entering
Oil measurement valve 261 can effectively control the oily flow entered from oil transfer pump 220 in plunger pump 250, be achieved in this
The accurate control of oily flow in oil pump oil circuit 200.
Further, in the present embodiment, inlet metering valve 261 includes ball-valve structure inlet metering valve 261, ball-valve structure
Inlet metering valve 261 is arranged on metering pipeline 260.Can be in ball-valve structure oil-feed using ball-valve structure inlet metering valve 261
No leakage oil mass in oil circuit, can so simplify high-pressure oil pump internal oil passages when metering valve 261 is closed, so as to save processing and manufacturing
Cost, and the ball-valve structure inlet metering valve 261 can be precisely controlled fuel flow under control of the ecu.
Secondly, in the present embodiment, oil pump oil circuit 200 also includes current limliting pipeline 270, and current limliting pipeline 270 is provided with current limliting
Valve 271, one end of current limliting pipeline 270 connect with metering pipeline 260, the other end of current limliting pipeline 270 and the oil-feed of oil transfer pump 220
Mouth connection.By setting current limliting pipeline 270 in oil pump oil circuit 200, thus, it is possible to pass through the flow-limiting valve on current limliting pipeline 270
Oily flow velocity in 271 limitation oil pump oil circuits 200, is achieved in the accurate control to flow oily in the oil pump oil circuit 200.
Further, in the present embodiment, flow-limiting valve 271 includes ball-valve structure flow-limiting valve 271, ball-valve structure flow-limiting valve
271 are arranged on current limliting pipeline 270.High-pressure oil pump internal oil passages can be simplified using ball-valve structure flow-limiting valve 271, so as to save
Cost is fabricated, and the ball-valve structure flow-limiting valve 271 can be precisely controlled fuel flow under control of the ecu.
In addition, in the present embodiment, oil transfer pump 220 include rotor 221, eccentric hoop 222, slide plate 223, the pump housing 226 and
Sliding blade spring 225.Eccentric hoop 222 is covered on the pump housing 226 of oil transfer pump 220, and rotor 221 is arranged on the rotating shaft of plunger pump 250
On, and rotating shaft can rotor driven 221 rotate.Secondly, multiple chutes 224 are provided with rotor 221, multiple chutes 224 are along turning
The circumferencial direction of son 221 is arranged at intervals.In addition, being correspondingly arranged on slide plate 223 in multiple chutes 224, sliding blade spring 225 is installed
In chute 224 and both ends are respectively held against bottom and the slide plate 223 of chute 224, and the one end of slide plate 223 away from spring is in slide plate bullet
Under the elastic acting force of spring 225 with the inwall of eccentric hoop 222 against.
Fig. 4 and Fig. 5 is refer to, in the present embodiment, is provided with four chutes 224 on rotor 221, it is right in chute 224
A slide plate 223 and a sliding blade spring 225 should be provided with.It is sliding when rotor 221 drives rotation by the drive shaft of high-pressure oil pump
Piece 223 is thrown out of by the effect of centrifugal force, is tightly fitted on the internal chamber wall of eccentric hoop 222.And because rotor 221 is in eccentric hoop
222 inner chambers it is eccentrically mounted, slide plate 223 slides along the groove on rotor 221, and the cavity volume between two slide plates 223 is by big
To small change, the diesel compression sucked at low pressure inlet at high-pressure outlet, diesel pressure is set to increase rapidly, to meet
The needs of high-pressure pump oil-feed；During low-speed running, sliding blade spring 225 promotes slide plate 223 to move, and compensate for the centrifugal force of deficiency, with
Meet the low-speed pump oil mass of oil transfer pump 220.
And then loaded by the way that oil transfer pump 220 can be mitigated, improve the performance of oil transfer pump 220, improve the oil pump oil circuit 200 and exist
Supply capability and reliability during 220 slow-speed of revolution of oil transfer pump.
In the present embodiment, inlet valve is provided with the connectivity part of plunger pump 250 and oil transfer pump 220, in plunger pump 250 together
The connectivity part of rail pipeline 230 is provided with delivery valve.
In addition, in other embodiment of the present utility model, oil pump oil circuit 200 also includes overflow passage, on overflow passage
Provided with overflow valve, one end of overflow passage connects with the oil-out of oil transfer pump 220, the other end and the oil return pipe 240 of overflow passage
Connection.The pressure of the oil pump oil circuit 200 can be limited by overflow passage, prevents the hypertonia in oil pump oil circuit 200.
And in the present embodiment, it is additionally provided with fuel filter between fuel tank 210 and oil transfer pump 220.
Based on above-mentioned oil pump oil circuit 200, the invention also discloses a kind of diesel car, the diesel car,
Common rail pipeline 230 including fuel injector and above-mentioned oil pump oil circuit 200, and oil pump oil circuit 200 is connected with fuel injector.
The operation principle of the oil pump oil circuit 200 is：
Oil in fuel tank 210 is after entering in oil transfer pump 220, by the pressurization of oil transfer pump 220 so that oil is by oil transportation
Discharged in pump 220.
The oil discharged in oil transfer pump 220 is needed by current limliting pipeline 270, thus, it is possible to pass through the limit on current limliting pipeline 270
Flow the oily flow velocity in the limitation oil pump of valve 271 oil circuit 200.
The oil discharged from oil transfer pump 220 is two-way, wherein flowing into inlet metering valve after the pressurization of oil transfer pump 220 all the way
261, the oily flow entered from oil transfer pump 220 in plunger pump 250 can effectively be controlled by inlet metering valve 261, by
This realizes the accurate control to flow oily in the oil pump oil circuit 200.Oil is flowing to plunger pump 250 by inlet metering valve 261
Afterwards, common rail pipe is supplied after plunger pump 250 to spray for fuel oil.
It is lubricated all the way after the pressurization of oil transfer pump 220 into plunger pump 250, and to the inside of plunger pump 250 in addition.
The fuel oil that plunger pump 250 leaks collects with high-pressure oil pump lubrication fuel oil in pump inner chamber 251, through the tunnel of high-pressure oil pump oil return pipe 240
Flow back to fuel tank 210.Can be after oil return pipe 240 be entered, again in addition, entering in common rail pipeline 230 oil not being ejected
Return in fuel tank 210.Thus, the oil pump oil circuit 200 is simple in construction, simplifies the structure of oil circuit, reduces the cost used, by
This can improve the stability of operation, and improve the precision and fuel feeding stability of fuel feeding.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. oil pump oil circuit, for light diesel engine, it is characterised in that：The oil pump oil circuit includes fuel tank, oil transfer pump and the common rail pipeline being sequentially communicated；The common rail pipeline is communicated with oil return pipe, and the one end of the oil return pipe away from the common rail pipeline connects the fuel tank；The oil transfer pump includes lubricating pipe and the plunger pump connected with the oil transfer pump, and the lubricating pipe is used to lubricate institute State plunger pump；The oil transfer pump also includes pump inner chamber, and the pump inner chamber is used to collect oil leak and the plunger pump in the plunger pump Lubricating oil, and the pump inner chamber connects with the oil return pipe.
- 2. oil pump oil circuit according to claim 1, it is characterised in that：Metering pipeline is additionally provided between the plunger pump and the oil transfer pump, the metering pipeline is provided with inlet metering valve, One end of the metering pipeline connects with the oil-out of the oil transfer pump, the other end of the metering pipeline and the plunger pump Oil inlet connects.
- 3. oil pump oil circuit according to claim 2, it is characterised in that：The inlet metering valve includes ball-valve structure inlet metering valve, and the ball-valve structure inlet metering valve is arranged on the metering On pipeline.
- 4. oil pump oil circuit according to claim 2, it is characterised in that：The oil pump oil circuit also includes current limliting pipeline, and the current limliting pipeline is provided with flow-limiting valve, one end of the current limliting pipeline with The metering pipeline connection, the other end of the current limliting pipeline connect with the oil inlet of the oil transfer pump.
- 5. oil pump oil circuit according to claim 4, it is characterised in that：The flow-limiting valve includes ball-valve structure flow-limiting valve, and the ball-valve structure flow-limiting valve is arranged on the current limliting pipeline.
- 6. oil pump oil circuit according to claim 1, it is characterised in that：The oil transfer pump includes rotor, eccentric hoop, slide plate, the pump housing and sliding blade spring；The eccentric hoop is covered in the pump housing；The rotor is arranged in the rotating shaft of the plunger pump, and the rotating shaft can drive the rotor to rotate, the rotor On be provided with multiple chutes, circumferencial direction of multiple chutes along rotor is arranged at intervals；The slide plate is correspondingly arranged in multiple chutes, the sliding blade spring is arranged in the chute and both ends are distinguished Prop up the bottom of chute and the slide plate, the one end of the slide plate away from spring under the elastic acting force of the sliding blade spring with The inwall of the eccentric hoop against.
- 7. oil pump oil circuit according to claim 1, it is characterised in that：Inlet valve is provided with the connectivity part of the plunger pump and the oil transfer pump；Delivery valve is provided with the connectivity part of the plunger pump and the common rail pipeline.
- 8. oil pump oil circuit according to claim 1, it is characterised in that：The oil pump oil circuit also includes overflow passage, and the overflow passage is provided with overflow valve, one end of the overflow passage with The oil-out connection of the oil transfer pump, the other end of the overflow passage connect with the oil return pipe.
- 9. oil pump oil circuit according to claim 1, it is characterised in that：Fuel filter is additionally provided between the fuel tank and the oil transfer pump.
- A kind of 10. diesel car, it is characterised in that：The diesel car includes the oil pump oil circuit described in any one in fuel injector and claim 1-9；The common rail pipeline of the oil pump oil circuit is connected with the fuel injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720795435.9U CN207178074U (en) | 2017-07-03 | 2017-07-03 | A kind of oil pump oil circuit and diesel car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720795435.9U CN207178074U (en) | 2017-07-03 | 2017-07-03 | A kind of oil pump oil circuit and diesel car |
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| Publication Number | Publication Date |
|---|---|
| CN207178074U true CN207178074U (en) | 2018-04-03 |
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ID=61735465
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720795435.9U Active CN207178074U (en) | 2017-07-03 | 2017-07-03 | A kind of oil pump oil circuit and diesel car |
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| Country | Link |
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| CN (1) | CN207178074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084080A (en) * | 2017-07-03 | 2017-08-22 | 辽阳新风科技有限公司 | A kind of oil pump oil circuit and diesel car |
-
2017
- 2017-07-03 CN CN201720795435.9U patent/CN207178074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084080A (en) * | 2017-07-03 | 2017-08-22 | 辽阳新风科技有限公司 | A kind of oil pump oil circuit and diesel car |
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